Patent AU-2018236894-B2 (AU)
Title: PON system and communication control method
Inventor: KUREBAYASHI HIROKI
IPC: H04B10/00
Filed: 2018-04-25
Granted: 2022-08-11
Abstract: li| 40 J a T RI *'1 k~l M Rlf E f'|i REl 
(19) 1 [] J r r' i p id|4 4 IMllll l llPlllllllAllll llli llli ll 
2018 12 f13 H (13.12.2018) W O 2018/225414 A1 
WIPO I PCT 
(51) $$4r$ : $ $)|| 0 )1| K Tr" Z$ IL R q _ -T 
H04L 12/44 (2006.01) H04B 10/272 (2013.01) 6 * 1 9 Kanagawa (JP).  
H04B10/03(2013.01) (72) RBA,: 4# * 4 *(KUREBAYASHI Hiroki); 
(21) M% R,, # ,5 :PCT/JP2018/016720 T 213 8511 $$ 35 1|| )| I I K Z$ A L R 2 q 
(22) M $R, H : 2018T4Nk 25 H (25.04.2018) ] R 6 * 15 N E C -5- -A 
(258MR 25E(25.0X.208A) Kanagawa (JP).  
(74) ftA : A (IEIRI Takeshi); T2210835 $ 
(30) m 95t#-5: 3 8 7 - L l:f 5 |A 9 M E 
tJRR 2017-114078 2017*69(09.06.2017) JP $tF$$ hfr Kanagawa (JP).  
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(NEC PLATFORMS, LTD.) [JP/JP]; T2138511 ffPJAb): AE, AG, AL, AM, AO, AT, AU, AZ, 
BA, BB, BG, BH, BN, BR, BW, BY, BZ, CA, CH, 
CL, CN, CO, CR, CU, CZ, DE, DJ, DK, DM, DO, 
(54) Title: PON SYSTEM AND COMMUNICATION CONTROL METHOD 
(54)R0):If: P O N t7 A itfi-ral$ 
FaL-T 100 
200 300 
-301 
(r_320 y321 A 722 
,400 7401 1402 
A79*s% ONU 501 ONU 502 
510 61602 
- VolP-GW -01 VoP-GW -702 
550 5 802 330 Optical line control unit 
AV 1,901 2 510Opiicalransmiss ion/reception unit 
540520 Optica inetmination unit 
-50 3 530 Packet transfer unit 
600 540 Emergency notification detection unit 
VoP-G5700 10 50 Emergency dispatcing control unit 900, 901, 902 Telephonexterminal 
900 
(57) Abstract: The present invention ensures the dispatching of an emergency notification from a terminal device when a 
communication failure due to constant light emission of an optical network unit (ONU) has occurred in a passive optical 
r network (PON) system. A PON system (10) is provided with a plurality of ONUs (500-502) connected to an optical line 
oe terminal (OLT) (100) via an optical divider (300), wherein data is transmitted to the OLT (100) by time-division multi
plexing. The ONU (500) comprises an emergency notification detection unit (540) for detecting an emergency notification
W O 2018/225414 A8/225414Al||||||||||||||||||||||||||||||||||||||||||||||||||||||||||| 
DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, 
HN, HR, HU, ID, IL, IN, IR, IS, JO, KE, KG, KH, 
KN, KP, KR, KW, KZ, LA, LC, LK, LR, LS, LU, LY, 
MA, MD, ME, MG, MK, MN, MW, MX, MY, MZ, 
NA, NG, NI, NO, NZ, OM, PA, PE, PG, PH, PL, PT, 
QA, RO, RS, RU, RW, SA, SC, SD, SE, SG, SK, SL, 
SM, ST, SV, SY, TH, TJ, TM, TN, TR, TT, TZ, UA, 
UG, US, UZ, VC, VN, ZA, ZM, ZW.  
(84) fl
*hTPAb): ARIPO (BW, GH, GM, KE, LR, LS, 
MW, MZ, NA, RW, SD, SL, ST, SZ, TZ, UG, ZM, 
ZW), J-:5- 7 (AM, AZ, BY, KG, KZ, RU, TJ, 
TM), -:9 'Y / (AL, AT, BE, BG, CH, CY, CZ, 
DE, DK, EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, 
LT, LU, LV, MC, MK, MT, NL, NO, PL, PT, RO, RS, 
SE, SI, SK, SM, TR), OAPI (BF, BJ, CF, CG, CI, CM, 
GA, GN, GQ, GW, KM, ML, MR, NE, SN, TD, TG).  
request from a telephone terminal (900), and an emergency dispatching control unit (550) for outputting a disconnection 
request between the ONUs (501, 502) and the OLT (100) to the optical divider (300) if the connection of the ONU (500) 
to the OLT (100) is not established when the emergency notification request is detected. The optical divider (300) com
prises an optical line control unit (330) for disconnecting the ONUs (501, 502) and the OLT (100) in accordance with 
the disconnection request.  
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INTERNATIONAL SEARCH REPORT International application No.  
PCT/JP2018/016720 
A. CLASSIFICATION OF SUBJECT MATTER 
Int. Cl. H04L12/44(2006.01)i, H04B10/03(2013.01)i, H04B10/272(2013.01)i 
According to International Patent Classification (IPC) or to both national classification and IPC 
B. FIELDS SEARCHED 
Minimum documentation searched (classification system followed by classification symbols) 
Int. Cl. H04L12/44, H04B10/03, H04B10/272 
Documentation searched other than minimum documentation to the extent that such documents are included in the fields searched 
Published examined utility model applications of Japan 1922-1996 
Published unexamined utility model applications of Japan 1971-2018 
Registered utility model specifications of Japan 1996-2018 
Published registered utility model applications of Japan 1994-2018 
Electronic data base consulted during the international search (name of data base and, where practicable, search terms used) 
C. DOCUMENTS CONSIDERED TO BE RELEVANT 
Category* Citation of document, with indication, where appropriate, of the relevant passages Relevant to claim No.  
A JP 2016-10074 A (NIPPON TELEGRAPH AND TELEPHONE 1-8 
CORP.) 18 January 2016, entire text, all drawings 
(Family: none) 
A JP 9-153858 A (MITSUBISHI ELECTRIC CORP.) 10 June 1-8 
1997, entire text, all drawings (Family: none) 
A JP 64-13847 A (NIPPON TELEGRAPH AND TELEPHONE 1-8 
CORP.) 18 January 1989, entire text, all drawings 
(Family: none) 
A JP 2009-65558 A (FUJITSU TELECOM NETWORKS LTD.) 26 1-8 
March 2009, entire text, all drawings (Family: 
none) 
Further documents are listed in the continuation of Box C. See patent family annex.  
* Special categories of cited documents: "T" later document published after the international filing date or priority 
"A" document defining the general state of the art which is not considered date and not in conflict with the application but cited to understand 
to be of particular relevance the principle or theory underlying the invention 
"E" earlier application or patent but published on or after the international "X" document of particular relevance; the claimed invention cannot be 
filing date considered novel or cannot be considered to involve an inventive 
"L" document which may throw doubts on priority claims) or which is step when the document is taken alone 
cited to establish the publication date of another citation or other "Y" document of particular relevance; the claimed invention cannot be 
specialreason (as specified) considered to involve an inventive step when the document is 
"0" document referring to an oral disclosure, use, exhibition or other means combined with one or more other such documents, such combination 
"P" document published prior to the international filing date but later than being obvious to a person skilled in the art 
the priority date claimed "&" document member of the same patent family 
Date of the actual completion of the international search Date of mailing of the international search report 
27.06.2018 10.07.2018 
Name and mailing address of the ISA/ Authorized officer 
Japan Patent Office 
3-4-3, Kasumigaseki, Chiyoda-ku, 
Tokyo 100-8915, Japan Telephone No.
INTERNATIONAL SEARCH REPORT International application No.  
PCT/JP2018/016720 
C (Continuation). DOCUMENTS CONSIDERED TO BE RELEVANT 
Category* Citation of document, with indication, where appropriate, of the relevant passages Relevant to claim No.  
A JP 2014-171079 A (NEC ACCESS TECHNICA, LTD.) 18 1-8 
September 2014, entire text, all drawings (Family: 
none) 
A JP 2008-283324 A (HITACHI COMM TECH LTD.) 20 1-8 
November 2008, entire text, all drawings & US 
2008/0279549 Al, entire text, all drawings & CN 
101304281 A
19 R, l9%t P C T /flfj3 PCT JP201 8/016720 
A. tEO) T©( @I ( I P C) ) 
Int.Cl. H04L12/44(2006.01)i, H04B1O/03(2013.01)i, H04B1O/272(2013.01)i 
B. H)fiet3Y7 
i~ The t&/>FP&t4 (5%$I7 ( I PC) 
Int.Cl. H04L12/44, H04B1O/03, H04B1O/272 
H *T fflg;V$ 1 9 2 2 - 1 9 9 6 
H * 19 M 1H NCV,$ 1 9 7 1 - 2 0 1 8 
H @%3%R$ 1 9 9 6 - 2 0 1 8 
H *19RUWMffg;V $R 1 9 9 4 - 2 0 1 8 
02 - A N ML M N 16f 
A JP 2016-10074 A ( 2016. 01. 18, 1-8 
( 7 7 9- ft -L ) 
A JP 9-153858 A 1997. 06. 10, (7 1-8 
A JP 64-13847 A ( 21989. 01. 18, ±, (7 1- 8 
7 9- fl - ) 
| C$WAR]0$ 2(:t mfij@Yl U L So W-'/ 7 7 --'9d T6id ! cf 
E A) $@(CMfl M6 L :If ( 1- --- 4 <f& M ,T 36 HE3 0) X(2{ R@T 3R Nt AT 
JP9-153858AEX $199.06.0 ±t&Tix (, §§1- T8 
*L {Ifiz$Xc% 9-MT6&i~d10f 0)Hcfz0itittiZilbk~in6 
F E [g < fl&gq fl, f ij 0@ fl, -J fTthC-M EYJ T@EM66&hT f -%~d l t0 
Fj#I 3Xt K -TFtX4t t [T4 f f ) ) W" -,' RPJ¶YA{~b I0 MIN:X WC2-e-C"3 , 
)I loiJtJatt L4to4 ,6 0 H N )T4tntQ Fh# 1 V)[xiY]T4#, flL oI 5 ©-~c2- -c, "'©+r LC 
FPj2ff12J(Cb$t© 4h@ff62J9 F&i li 7'/V77 9-PF 
A& TL fH *R OiAH 
27. 06. 2018 10. 07. 2018 
WtOAlgl'tt tf rm R(u066t ) 5X 8523 
H *[ItTR (I SA/J P) 
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f tftkI hX5_H--~4T3 - 4-3 0 3-3581-110 1 i-P 35 96 
d -PCT/I SA /210 (M2^°-) (2015t1J)
19 AIllt Ill-I pflfi 4 PCT/JP2018/016720 
C (RE-A) _________ 6 l70 cmf 
It y9 -* IN_________ rfl* A0 
X JP 200965558 A (-+& 1,-nz~iyb- 1-8 
2009. 03. 26, 1  iZ [A) (7y i 
A JP 2014-171079 A(N E C ~LI12j 2014.09. 18, 1-8 
A JP 2008-283324 A( H~L2~ An-, z/'- 1-8 
2008. 11. 20, &~I.) &US 2008/0279549 AliIZi) & CN 
101304281 A 
dx- P CT I SA/ 2 10 (M 2Z- -:),fRA -) ( 20 1 5 1M